Details
| Original language | English |
|---|---|
| Pages (from-to) | 181-186 |
| Number of pages | 6 |
| Journal | Catalysis letters |
| Volume | 54 |
| Issue number | 4 |
| Publication status | Published - Sept 1998 |
Abstract
The catalytic reduction of NO with H2 or CO and the O2 + H2 reaction have been investigated at low pressure (p < 10-3 mbar) on microstructured bimetallic Pt(100)/Rh and Pt(100)/Ti surfaces prepared by lithographic techniques. Photoemission electron microscopy (PEEM) was the spatially resolving technique used. It is shown that diffusional coupling leads to dynamic eftects which are size-dependent and thus can be controlled through the design of the surface microstructure. In connection with periodic parameter forcing these dynamic effects can potentially be exploited to improve the yield and selectivity of catalytic reactions.
Keywords
- Automotive catalytic converter, Chemical waves, Composite surfaces, NO reduction, PEEM, Photoemission electron microscopy, Pt, Rh, Scanning photoelectron microscopy, Surface diffusion
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
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In: Catalysis letters, Vol. 54, No. 4, 09.1998, p. 181-186.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Microchemical engineering of catalytic reactions
AU - Schütz, E.
AU - Hartmann, N.
AU - Kevrekidis, Y.
AU - Imbihl, R.
N1 - Funding Information: This work was financially supported by the BMBF (FRG) and the NSF (USA). The authors thank M. Graham for original discussions and M. Lange for the preparation of the catalysts.
PY - 1998/9
Y1 - 1998/9
N2 - The catalytic reduction of NO with H2 or CO and the O2 + H2 reaction have been investigated at low pressure (p < 10-3 mbar) on microstructured bimetallic Pt(100)/Rh and Pt(100)/Ti surfaces prepared by lithographic techniques. Photoemission electron microscopy (PEEM) was the spatially resolving technique used. It is shown that diffusional coupling leads to dynamic eftects which are size-dependent and thus can be controlled through the design of the surface microstructure. In connection with periodic parameter forcing these dynamic effects can potentially be exploited to improve the yield and selectivity of catalytic reactions.
AB - The catalytic reduction of NO with H2 or CO and the O2 + H2 reaction have been investigated at low pressure (p < 10-3 mbar) on microstructured bimetallic Pt(100)/Rh and Pt(100)/Ti surfaces prepared by lithographic techniques. Photoemission electron microscopy (PEEM) was the spatially resolving technique used. It is shown that diffusional coupling leads to dynamic eftects which are size-dependent and thus can be controlled through the design of the surface microstructure. In connection with periodic parameter forcing these dynamic effects can potentially be exploited to improve the yield and selectivity of catalytic reactions.
KW - Automotive catalytic converter
KW - Chemical waves
KW - Composite surfaces
KW - NO reduction
KW - PEEM
KW - Photoemission electron microscopy
KW - Pt
KW - Rh
KW - Scanning photoelectron microscopy
KW - Surface diffusion
UR - http://www.scopus.com/inward/record.url?scp=0000616597&partnerID=8YFLogxK
U2 - 10.1023/A:1019025316038
DO - 10.1023/A:1019025316038
M3 - Article
AN - SCOPUS:0000616597
VL - 54
SP - 181
EP - 186
JO - Catalysis letters
JF - Catalysis letters
SN - 1011-372X
IS - 4
ER -